Gous, Robert Mervyn.Griessel, Munro.2015-04-072015-04-0719801980http://hdl.handle.net/10413/11974Thesis (Ph.D.)-University of Natal, Pietermaritzburg, 1980.No abstract available.en-ZAPoultry--Feed utilization efficiency.Poultry--Feeding and feeds.Poultry--Nutrition.Amino acids in animal nutrition.Eggs--Production.Theses--Animal and poultry science.Biological and economic response of laying hens to dietary isoleucine, methionine, lysine and energy.Thesis